import dask.dataframe as ddf


with open(Mar_N_W, 'rb') as f: result = chardet.detect(f.read())
Mar_NW=ddf.read_csv(Mar_N_W,encoding=result['encoding'],sep=None)


~AppDataLocalContinuumanaconda3libsite-packagespandasioparsers.py in _next_iter_line(self, row_num)
   2693
   2694         try:
-> 2695             return next(self.data)
   2696         except csv.Error as e:
   2697             if self.warn_bad_lines or self.error_bad_lines:

~AppDataLocalContinuumanaconda3libcodecs.py in decode(self, input, final)
    320         # decode input (taking the buffer into account)
    321         data = self.buffer + input
--> 322         (result, consumed) = self._buffer_decode(data, self.errors, final)
    323         # keep undecoded input until the next call
    324         self.buffer = data[consumed:]

~AppDataLocalContinuumanaconda3libencodingsutf_16.py in _buffer_decode(self, input, errors, final)
     67                 raise UnicodeError("UTF-16 stream does not start with BOM")
     68             return (output, consumed)
---> 69         return self.decoder(input, self.errors, final)
     70
     71     def reset(self):

UnicodeDecodeError: 'utf-16-le' codec can't decode byte 0x0a in position 0: truncated data